Mercury is larger than Earth's Moon but smaller than Earth
a. True
b. False
Indicate whether the statement is true or false
True
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Latent Heats: A 2294-kg sample of water at 0° C is cooled to -36°C, and freezes in the process. How much heat is liberated? For water LF = 334,000 J/kg and LV = 2.256 × 106 J/kg. The specific heat of ice is 2050 J/kg ? K.
A. 935,000 kJ B. 597,000 kJ C. 1,110,000 kJ D. 334,000 kJ
An object of mass 4.0 kg starts at rest from the top of a rough inclined plane of height 10 m as shown in the figure
If the speed of the object at the bottom of the inclined plane is 10 m/s, how much work does friction do on this object as it slides down the incline? What will be an ideal response?
Single-Slit Diffraction: A single thin slit forms a diffraction pattern when illuminated with monochromatic light. The fourth minimum of the pattern occurs at an angle of 32.0° away from the central maximum. At what angle does the fifth minimum occur?
A. 41.5° B. 41.0° C. 40.5° D. 42.0° E. 42.5°
If the star Alpha Centauri, 4.3 light years distant from the Earth, were to explode this instant, we would not be aware of this event until 4.3 years from now.
a. true b. false